evaluate -3 x +2x-1 if x=-5
Answers
Explanation:
Since the value of x is given you have to plug in or substitute it in for x in the equation. The work is shown above.
Related Questions
Tyshawn drew a two-dimensional shape. The shape had multiple sides. The
shape had only right angles. There are two pairs of parallel lines. One pair is 4 inches
long and one pair in 2 inches long. What shape could Tyshawn have drawn?
Answers
Answer:
Rectangle
Step-by-step explanation:
2 inches × 2 sides and 4 inches × 2 sides = a rectangle
Two trains on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 kilometres per hour and the other travels at an average speed of 70 kilometres per hour. How long after they leave the station will they be 50 km apart?
Answers
9514 1404 393
Answer:
20 minutes
Step-by-step explanation:
The trains are separating at the rate of 80 +70 = 150 km/hour. The time required to be 50 km apart is then ...
time = distance/speed = (50 km)/(150 km/h) = 1/3 h = 20 minutes
A partial solution set is given for the polynomial equation. Find the complete solution set. (Enter your answers as a comma-separated list.)2x^3 − 5x^2 − 28x + 15 = 0; {1/2}
Answers
Answer:
2x^3 − 5x^2
Step-by-step explanation:
Please help me i can’t solve this
Answers
Answer:
8 to the third power inches squared
Step-by-step explanation:
well
4 to the third power is
4 x 4 x 4 which equals 64
then
2 to the third power
2 x 2 x 2 = 8
64 x 8 = 512
finally
8 x 8 x 8 = 512
To find a area of a rectangle you need to multiply it’s height by it’s width.
Multiply the base if the exponents are the same.
4^3 x 2^3 = 8^3
The second option.
I think .....
Please answer within the next 7 min, giving 38 points of a ligament answer!
Answers
If 3 students eat 2 pizzas how many pizzas are needed for 54 students
Answers
Answer:
18 pizzas
Step-by-step explanation:
need help with these 2 questions
Answers
Answer:
There are no questions....
Are they on your prev one?
There are 40 people in a choir.
Half of the people in the choir are women.
The number of women in the choir is 5 times the number of
men in the choir.
The rest of the people in the choir are children.
the number of
children in the
choir
:
the number of
men in the choir
n : 1
Work out the value of n.
You must show how you get your answer.
n =
Answers
9514 1404 393
Answer:
n = 4
Step-by-step explanation:
Of the 40 people, half are women, so there are 20 women.
There are 5 times as many women as men, so 20/5 = 4 are men.
The remainder are children, so there are 20-4 = 16 children.
The ratio of children to men is ...
children : men = 16 : 4 = 4 : 1 = n : 1 . . . . . . . . remove a factor of 4 from 16:4
The value of n is 4.
What is the measure of angle GXI?
Answers
Answer:
Step-by-step explanation:
GXI with three points sounds like a triangle and a triangle angle equals 180 degrees.
Add picture and I'll try to solve full problem
Which one of the following expressions has the same value as -11 + 6?
Answers
Answer:
1 + 4 = 5
Step-by-step explanation:
A tool box has the dimensions of 9 in by 3 in by 6 in. If Rick plans to double all three dimensions to build a larger tool box, he believes he would double the volume of the tool box. Is he correct?
Answers
Answer:
No; it will not double the volume of the box
Step-by-step explanation:
Solve triangle ABC. (Round your answers to one decimal place.)
∠A =
13.5
°
∠B =
63.9
°
∠C =
Answers
13.5 + 63.9 + < C = 180
< C = 102.6
Please help me with this problem!
Answers
Answer: Yes
Step-by-step explanation:
Solving for the third angle in the left triangle, using the fact that angles in a triangle add to 180 degrees, we get the third angle is 180-50-60=70 degrees.
Thus, the triangles are similar by AA.
72 is 40% of what number? A. 18 B. 144 C. 180 D. 280
Answers
Answer:180(D)
Step-by-step explanation: First, do 72/x=40/100. Then, cross muliply which is 7200 and 40*x. do 7200/40. The answer should be 180.
Answer:
The answer is C(180) on edg 2021
What is the value of mc015-1.jp g?
Answers
Answer:
I dont know
Step-by-step explanation:
Answer:
1456
Step-by-step explanation:
This question is asking us to find the sum of [tex]4(3)^{n-1}[/tex] from n = 1 to n = 6. We can find the sum like this:
[tex]4(3)^{1-1} +4(3)^{2-1} +4(3)^{3-1} +4(3)^{4-1} +4(3)^{5-1} +4(3)^{6-1}[/tex]
Which can be simplified to:
[tex]4(3)^{0} +4(3)^{1} +4(3)^{2} +4(3)^{3} +4(3)^{4} +4(3)^{5}[/tex]
[tex]4(1) +4(3) +4(9) +4(27)+4(81) +4(243)[/tex]
[tex]4 +12 +36 +108+324 +972 = 1456[/tex]
Someone help I WILL GIVE BRAINLIEST!!!!
Answers
Answer:
It is D
The one you have chosen is the correct answer.
Step-by-step explanation:
I have no idea what this question is asking
Answers
Answer:
I think it's $200 as well since it asks how much money was borrowed.
Step-by-step explanation:
Jonathan is making 4 birdhouses. Each needs 7 3/4 feet of wood. How much wood is needed?
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Answer:
31 feet of wood is needed
Cold day where I live! Stuck inside and need some help with math!
Please only answer if you know the answer, the comment section is right below. Please don't waste my points!
Also, please show all of your work, you are trying to help me better understand the concept, not just give me the answer.
The image is down below. Show work! Thanks!
Answers
Answer:
4°Step-by-step explanation:
Use tangent:
tan = opposite / adjacent
tan x = 1/14x = arctan (1/14)x = 4°A container that holds beans is shaped like a cylinder. The radius of the container is 9 centimeters, and the height of the container is 11.25 centimeters.Which measurement is closest to the volume of the container in cubic centimeters?
2862.78
954.26
715.69
238.5
Answers
Answer:
I can't tell you the answer but pi is 3.1415
find the distance between the two points
(1, 2), (-3, 5)
Answers
Answer:
13
Step-by-step explanation:
if you cannot find the awnser next time try mathaway it gives you the awnser and tells you an explanation.
3. Which statement is true?
A. The only factors of 3 are 3 and 1.
B. The only factors of 4 are 4 and 1.
C. The only factors of 6 are 6 and 1.
D. The only factors of 8 are 8 and 1.
Answers
Answer: A
Step-by-step explanation: 4 can be divided by 2, 6 can be divided by 3, and 8 can be divided by 4. 3 can only be divided by 3 and 1, so the answer is A.
Hope this helps :)
Answer:
A) 3 is a prime number which means its only factors are itself and one
Step-by-step explanation:
all other options are composite numbers and have 3 or more factors:
factors of 4: 1,2,4
factors of 6: 1,2,3,6
factors of 8: 1,2,4,8
Compute four-week and five-week moving averages for the time series. If required, round your answers to two decimal places. Week Sales 4 Period Moving Average 5 Period Moving Average 1 17 2 21 3 19 4 23 5 18 fill in the blank 1 6 16 fill in the blank 2 fill in the blank 3 7 20 fill in the blank 4 fill in the blank 5 8 18 fill in the blank 6 fill in the blank 7 9 22 fill in the blank 8 fill in the blank 9 10 20 fill in the blank 10 fill in the blank 11 11 15 fill in the blank 12 fill in the blank 13 12 22 fill in the blank 14 fill in the blank 15
Answers
Answer:
fill in the blank 1 =20
fill in the blank 2 =20.25
fill in the blank 3 = 19.4
fill in the blank 4 = 19.75
fill in the blank 5 =19.6
fill in the blank 6 = 19.25
fill in the blank 7=19.2
fill in the blank 8 = 18
fill in the blank 9= 19
fill in the blank 10 = 76/4=19
fill in the blank 11 = 18.8
Step-by-step explanation:
Week Sales 4 Period Moving Average 5 Period Moving Average
1 17
2 21
3 19
4 23
5 18 fill in the blank 1
=20
6 16 fill in the blank 2 fill in the blank 3
=20.25 19.4
7 20 fill in the blank 4 fill in the blank 5
19.75 19.6
8 18 fill in the blank 6 fill in the blank 7
19.25 19.2
9 22 fill in the blank 8 fill in the blank 9
18 19
10 20 fill in the blank 10 fill in the blank 11
76/4=19 18.8
11 15 fill in the blank 12 fill in the blank 13
20 19.2
12 22 fill in the blank 14 fill in the blank 15
18.75 19
The formula used for moving average is
a1= 1/4 ( W1+W2+W3+W4)
a2= 1/4 ( W2+W3+W4+ W5)
a3= 1/4( W3+W4+ W5+W6)
and so on
Where W1= week 1, W2= week 2 ,W3= week3
a1= 1st average , a2= 2nd average
The similar process is used for five year moving average
a1= 1/5 ( W1+W2+W3+W4)
a2= 1/5 ( W2+W3+W4+ W5)
a3= 1/5( W3+W4+ W5+W6)
Only it is divided by 5 instead of 4
To calculate the four-week and five-week moving averages, we need to sum up the sales for the specified number of weeks and divide by the corresponding period.
Week | Sales | 4-Period Moving Average | 5-Period Moving Average
-----|-------|------------------------|------------------------
1 | 17 | |
2 | 21 | |
3 | 19 | |
4 | 23 | |
5 | 18 | 20.00 |
6 | 16 | 19.25 |
7 | 20 | 19.50 |
8 | 18 | 19.25 |
9 | 22 | 19.00 |
10 | 20 | 19.00 |
11 | 15 | 18.75 | 19.20
12 | 22 | 18.75 | 19.20
13 | 22 | 19.75 | 19.40
14 | | 19.75 | 19.40
15 | | 19.75 | 19.40
The four-week moving average is calculated by summing up the sales of the current week and the previous three weeks, and then dividing by 4. The five-week moving average is calculated similarly, but with a period of five weeks.
(Will mark branliest please help!! :) Find the area of the figure.
A) 20 mm2
B) 40 m2
4 mm
4 mm 6 mm
C) 14 mm
D) 40 mm
4 mm
Answers
Answer:
Well, let's break it down.
Since calculating a triangle is like calculating a rectangle, then sawing it in half, we can correctly decide that the top and bottom right sections are both equal to twelve, adding up to 24. Now for the other two, we can use another quick trick; by instead of adding the equal right triangles, you can skip the division and multiplication by two, leaving us with a square area of 16. 24 + 16 is 40, and since we are working with millimeters instead of meters, the answer must be D
tl/dr: D
Hope this helps!
Step-by-step explanation:
order least to greatest -5, -7, -0.75, 13, 0.75, 0.5, 9
Answers
Answer: -7, -0.75, -5, 0.5, 0.75, 9, 13
Step-by-step explanation:
Because negative numbers are always less
Eric's goal is to walk 2.75 miles to and from the park every day for an entire year. If he meets his goal, how many miles will Eric walk?
Answers
Explanation: The round trip to go to the park is 5.5 (2.75 times). Then multiply 5.5 by 365 days and you’ll get 2,007.5
Please help
See the picture
Answers
Answer:
6
Step-by-step explanation:
Gud luck
The bar graph shows the height of a plant each month for four months. Your friend concludes that the height of the plant in Month 4 is 3
times its height in Month 1. Is this conclusion accurate? Explain.
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Answer:
I can't see the pic or I can't answer sorry
Step-by-step explanation:
What value of y makes the equation 3y+ 9 = 36 true?
Answers
Answer:
y=9
Step-by-step explanation:
Use the figure to find the measures of the numbered angles.
Answers
Answer:
1 = 81 degrees
2 = 99 degrees
3 = 81 degrees
4 = 99 degrees
5 = 81 degrees
6 = 99 degrees
7 = 81 degrees
Answer:
Step-by-step explanation:
1 = 81 degrees
2 = 99 degrees
3 = 81 degrees
4 = 99 degrees
5 = 81 degrees
6 = 99 degrees
7 = 81 degrees